Sr.StaffSoftwareEngineer-AIChat

At Lilly, we unite caring with discovery to make life better for people around the world. We are a global healthcare leader headquartered in Indianapolis, Indiana. Our employees around the world work to discover and bring life-changing medicines to those who need them, improve the understanding and management of disease, and give back to our communities through philanthropy and volunteerism. We give our best effort to our work, and we put people first. We’re looking for people who are determined to make life better for people around the world. ChatNow is how Lilly talks to AI. Every day, tens of thousands of employees open ChatNow to get work done — asking questions, running analyses, invoking specialized agents. It's the front door to Cortex, Lilly's enterprise AI platform. And it needs to be fast, intuitive, and relentlessly reliable. We're looking for a Senior Staff Software Engineer to own the technical direction and delivery of ChatNow's core platform: the routing engine that matches intent to the right agent, the integration layer that connects a growing ecosystem of AI capabilities, and the experience layer that makes it all feel effortless. You'll set the technical bar for one of Lilly's most visible AI products — and ship code that the entire company uses every day. **What You 'll Do** You'll define the architecture and drive implementation of ChatNow's conversation routing engine — the system that takes a user's intent and connects it to the right AI agent, model, or workflow. You'll own the agent integration layer, designing how ChatNow connects to Lilly's expanding network of specialized AI agents on Cortex. You'll build streaming chat interfaces in React and TypeScript, backed by scalable services that handle thousands of concurrent sessions with low latency across multiple AI providers. You'll own features end to end. Design, build, test, deploy, monitor. No hand-offs. You'll operate ChatNow on Cortex and Hangar — Lilly's enterprise Kubernetes platform